Millen, David R. ; Yang, Meng ; Whittaker, Steven ; Feinberg, Jonathan ; Bannon, Liam J. (Bearb.) ; Wagner, Ina (Bearb.) ; Gutwin, Carl (Bearb.) ; Harper, Richard H.R. (Bearb.) ; Schmidt, Kjeld (Bearb.): Social bookmarking and exploratory search In: ECSCW 2007 : Springer London, 2007. - ISBN-978-1-84800-030-8, S. 21-40